GULFPORT, Fla. - Attorneys for Steven Gress are seeking additional evidence they believe could help in his defense. Gress is facing the death penalty in the murder of 16-year-old Miranda Corsette.

Gress' attorney is petitioning that prosecutors turn over evidence obtained from Grindr. They're also requesting access to his juvenile record and mental health evaluations it may contain. Those documents could factor into a potential competency defense.

Prosecutors say Gress used the social media and dating app Grindr to contact Miranda. Detectives determined that Gress met the teen through the app, which allows users to chat and share their locations in real time.

According to investigators, Gress invited Miranda to his home in St. Petersburg, where his domestic partner, Michelle Brandes

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